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Employee surveys: the scientific fallacy of flexible questions

Written by Compono | Jan 26, 2026 12:26:50 AM

The allure of the 'customisable' survey tool is one of the most persistent myths in modern HR. We’ve all been there: you’re sitting in a meeting, someone suggests a few 'tweaks' to the employee engagement questions to better fit the current vibe, and suddenly your scientific data is replaced by a finger in the wind. While flexibility feels like a feature, in the world of people science, it’s actually a bug that can paralyse your ability to make informed decisions for your business.

The scientific fallacy: why 'flexible' questions ruin your data

When you set out to measure employee engagement, you aren't just asking for opinions; you are conducting a psychological study of your workforce. In the realm of psychometrics, the phrasing of a question is everything. Even a slight change in wording - swapping 'satisfied' for 'happy', or 'frequently' for 'often' - can completely alter the cognitive process an employee goes through when answering.

This is where many generic survey tools lead people leaders astray. They offer the ability to add, edit, or delete questions on a whim. But as soon as you change the wording of a question, you lose its scientific validity. You are no longer measuring the same construct as you were in the previous quarter. This creates a 'noise' in your data that makes it impossible to tell if a shift in scores is due to a real change in employee sentiment or just a reaction to the new phrasing.

Unless you happen to be a data scientist with a background in organisational psychology, designing your own questions is essentially guesswork. Scientific validity requires rigorous testing for reliability and consistency. When you use unvalidated questions, you're not getting a clear picture of your culture; you're getting a distorted reflection of how people interpreted a specific set of words on a specific day.

The trend-line trap: how changing questions erases progress

The primary value of employee surveys isn't the single snapshot in time; it’s the longitudinal data. In 2026, business leaders need to see the 'arc' of their culture. Are your latest leadership initiatives actually moving the needle? Is the team's motivation increasing over a six-month period? You can only answer these questions if the yardstick you use remains exactly the same.

We call this the 'Trend-Line Trap'. Imagine trying to track your fitness progress, but one week you measure your weight in kilograms, the next you measure your waist circumference in inches, and the week after you just track how many push-ups you can do. Each metric is interesting, but you have no way of seeing if you are actually getting healthier overall. The same logic applies to your people data.

When you 'optimise' a survey by changing questions to be more 'relevant' to a current project, you effectively hit the 'reset' button on your historical data. You lose the ability to monitor trends, identify recurring seasonal dips in morale, or prove to the board that your cultural transformation is working. Maintaining a consistent, validated set of questions is the only way to ensure your progress is measurable and your successes are demonstrable.

Validated scales vs. open feedback: finding the right balance

So, does this mean you shouldn't care about the specific context of your business? Of course not. The secret lies in splitting your data collection into two distinct streams: quantitative validated scales and qualitative open-ended feedback. This is exactly how we’ve designed Compono Engage to work.

You use validated psychometric scales to get the 'what'—the hard numbers that track engagement, motivation, and turnover intention. These stay consistent so your trend lines remain intact. Then, you use open-ended feedback areas to get the 'why'. This is where employees provide the colour and context behind those numbers. Perhaps the 'innovation' score dropped because a specific software rollout was frustrating, or 'collaboration' spiked because of a new cross-functional project.

By keeping the core questions static, you preserve the science. By allowing for rich, qualitative comments, you capture the nuance. This balance ensures that your employee engagement strategy is both scientifically robust and deeply relevant to the day-to-day realities of your staff. It allows you to move from 'gut feel' to evidence-based action without losing the human element.

The danger of generic tools: why you need a people data scientist approach

In the current market, there's no shortage of free or cheap survey tools that promise to help you 'check in' with your team. However, using a generic tool for specialised HR metrics is a form of technical debt. These platforms are built for general data collection, not for the complex nuances of organisational behaviour and cultural alignment.

A true people data scientist approach understands that engagement is a leading indicator of business performance. If your data is flawed because of poor survey design, your subsequent business strategies will be based on a false premise. Generic tools often lack the anonymity protections, benchmark capabilities, and statistical rigour required to provide a trustworthy foundation for strategic planning.

When you use a platform like Compono, you are essentially hiring a team of people scientists to manage your data integrity. We’ve done the hard work of validating the dimensions - mapping everything from risk-taking to internal effectiveness - so you don't have to. This allows HR leaders to step into the role of a strategic coach, spending their time interpreting results and driving change rather than worrying if their survey questions are statistically sound.

Compono Engage: maintaining scientific integrity while capturing context

We created Compono Engage to solve the conflict between scientific rigour and business relevance. Our platform is built on 12 scientifically-validated dimensions of culture that load onto a single factor we call 'Culture'. This isn't just a collection of nice-to-have questions; it's a robust model tested for internal consistency and reliability.

By using Compono Engage, you gain access to a 'system of intelligence' rather than just a 'system of record'. The platform automatically identifies hotspots in your work environment, highlights subcultures across different departments, and provides actionable insights. Because the questions remain validated and consistent, you can track the effectiveness of your interventions over time with total confidence in the numbers.

This approach empowers you to make work personal by understanding the 'mood' of your organisation - its engagement - within the context of its 'personality' - its culture. When you combine this with our qualitative feedback loops, you get a complete, 360-degree view of your workforce that is ready for the board-level discussions of 2026. You can see more in our case studies about how this data-driven approach transforms business outcomes.

Key takeaways for people leaders

  • Consistency is king: Changing survey questions, even slightly, destroys your ability to track longitudinal trends.
  • Validation matters: Generic questions lack the psychometric rigour needed to accurately predict employee behaviour or turnover risk.
  • Separate the 'What' from the 'Why': Use static, validated scales for hard data and open-ended fields for qualitative context.
  • Avoid the 'Vibe' Trap: Don't design surveys based on current office trends; use evidence-based dimensions that align with business objectives.
  • Leverage Experts: Use a dedicated survey tool like Compono Engage to ensure your people analytics are handled with scientific integrity.

Where to from here?